zordius/fluxex

#!/usr/bin/env node
'use strict';

var version = require('./package.json').version,
    fs = require('fs'),
    escape = require('escape-regexp'),
    semver = require('semver'),
    published = semver.inc(version, 'prerelease'),
    nextv = semver.inc(published, 'patch'),
    history = fs.readFileSync('HISTORY.md', 'utf8'),
    versions = history.match(/^([\d\-\.]+)/mg),
    whatsnew = history.match(new RegExp([escape(versions[0]), '(.|\n)+', escape(versions[1])].join(''))),
    updates = whatsnew[0].match(/\* .+/g),
    below = history.match(new RegExp(escape(versions[1]) + '(.|\n)+')),
    message = [];

console.warn('Package.json   : ' + version);
console.warn('Npm Version    : ' + published);
console.warn('Release History: ' + versions[0]);

if (!semver.gt(versions[0], published)) {
    console.warn('No need to release...');
    process.exit(1);
}

message.push(versions[0] + ' https://github.com/zordius/fluxex/releases/tag/v' + versions[0]);
updates.forEach(function (O) {
    message.push('   ' + O);
});

console.warn('');
console.warn('What\'s new:');
console.log(message.join('\n'));
console.warn('');

fs.writeFileSync('HISTORY.md', 'HISTORY\n=======\n\n' + message.join('\n') + '\n\n' + below[0], 'utf8');